Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2007-02-23
2009-11-17
Shrivastav, Brij B (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S309000
Reexamination Certificate
active
07619411
ABSTRACT:
A method for producing images of a subject containing M spin species using a magnetic resonance imaging (MRI) system includes obtaining N k-space data matrices from N k-space data sets acquired with the MRI system using a pulse sequence with an individual associated echo time. The k-space data matrices each include corresponding data at the same plurality of k-space locations and time stamps are tracked for each k-space location. For each k-space location, a set of linear equations in k-space is solved. The set of linear equations relates corresponding data from the N k-space data matrices, echo times and time stamps to desired calculated k-space data. Calculated data in k-space which is corrected for chemical shift is produced corresponding to each k-space location and aggregated to obtain a k-space calculated data set. The k-space calculated data set is transformed to image space to obtain a corresponding image.
REFERENCES:
patent: 6856134 (2005-02-01), Pelc et al.
patent: 7084626 (2006-08-01), Ma et al.
patent: 7298144 (2007-11-01), Reeder et al.
patent: 7358728 (2008-04-01), Nozaki et al.
patent: 7358729 (2008-04-01), Ma et al.
patent: 7375522 (2008-05-01), Reeder
patent: 2005/0085713 (2005-04-01), Reeder et al.
patent: 2005/0122105 (2005-06-01), Avram et al.
patent: 2006/0161060 (2006-07-01), Pai
patent: 2006/0250131 (2006-11-01), Reeder et al.
patent: 2006/0350132 (2006-11-01), Reeder et al
patent: 2008/0001600 (2008-01-01), deCharms
patent: 2009/0179642 (2009-07-01), deCharms
patent: 1 574 874 (2005-01-01), None
patent: 2005006008 (2005-01-01), None
PCT International Search Report.
Scott B. Reeder et al, Multicoil Dixon Chemical Species Separation With an Iterative Least-Squares Estimation Method, Magnetic Resonance in Mecidine 51:35-45-(2004).
T. Tuthill et al, MRI Quantification of Liver Fat in an Obese Population, Proc. Intl. Soc. Mag. Reson. Med. 14 2295 (2006).
Scott B. Reeder et al, Generalized Method For MRI Chemical Species Separation Using Arbitrary k-space Trajectories with Improved Chemical Shift Artifact Correction, invention disclosure to WARF Dec. 30, 2006, 126 pages.
Quarles & Brady LLP
Shrivastav Brij B
Wisconsin Alumni Research Foundation
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